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Notification doesn't show all action buttons

I'm trying to create a simple notification for a music player that has 3 buttons, Pause, Previous and Next. My code only shows one of them which is Next. Any suggestions where I did a mistake?
Intent intent = new Intent(this, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
Intent playNextIntent = new Intent(this, BroadcastReceiver.class);
playNextIntent.setAction("NEXT_ACTION");
PendingIntent nextPendingIntent = PendingIntent.getBroadcast(this, 1, playNextIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent pauseIntent = new Intent(this, BroadcastReceiver.class);
pauseIntent.setAction("PAUSE_ACTION");
PendingIntent pausePendingIntent = PendingIntent.getBroadcast(this, 2, pauseIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent playPreviousIntent = new Intent(this, BroadcastReceiver.class);
playPreviousIntent.setAction("PREVIOUS_ACTION");
PendingIntent prevPendingIntent = PendingIntent.getBroadcast(this, 3, playPreviousIntent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this, "D")
.setSmallIcon(R.drawable.ic_launcher_background) //notification icon
.setContentTitle("Simple Music Player")
.setContentText("Currently playing: " + mediaPlayerHolder.getSongsList().get(songIterator).getSongName())
.setPriority(NotificationCompat.PRIORITY_MAX)
.setWhen(0)
.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
.setOngoing(true) //user can't remove notification
.addAction(R.drawable.ic_previous, "Previous", prevPendingIntent) // #0
.addAction(R.drawable.ic_pause, "Pause", pausePendingIntent) // #1
.addAction(R.drawable.ic_next, "Next", nextPendingIntent) // #2
.setStyle(new NotificationCompat.BigTextStyle())
.setContentIntent(pendingIntent); //on click go to app intent
NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
// notificationId is a unique int for each notification that you must define
notificationManager.notify(1, mBuilder.build()); //show notification

There's nothing wrong with your code. If you run your code in an emulator on stock android the actions show up as expected.
On Android displaying notifications is done by the launcher. Like any other app launchers can contain bugs. In this case there is a bug in the launcher you're using to display multiple actions in a notification.

I recommend you to try a google sample Universal Music player Here is a GitHub link . It includes all of you want in notifications and it has a latest notification Android Oreo features just try out it .

How to show just notification count on appview android

I'm new to android. And to show notification on android phones I got this below code
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /*Request code*/ , intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.mytune_default)
.setContentTitle("FCM Message")
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
int m = (int) ((new Date().getTime() / 1000L) % Integer.MAX_VALUE);
notificationManager.notify(m /*ID of notification*/ , notificationBuilder.build());
But the thing is I just want that notification unread count on code appview on system, but dont want other things loke message, title etc that appear on notification tray of system. How come this be acheived>

It's not possible to replace launcher icon with widget. You can say to user to place your widget on the home screen, but not in application list. Users must do that in their own. Nevertheless, it's iOs pattern. It's not good idea to bring iOS design elements to android. Android have great notification bar, where user expect to see notification from your app. Android users don't expect to see it over the icon.

Show notification in Android 5.0.1

I want to create a Notification in my Android App, but my code doesn't work!
NotificationManager nManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
Notification.Builder nBuilder = new Notification.Builder(this);
nBuilder.setContentTitle("Title...");
nBuilder.setContentText("Text...");
nBuilder.setContentInfo("Info?");
nBuilder.setWhen(System.currentTimeMillis());
//Intent notificationIntent = new Intent(this, MainActivity.class);
//PendingIntent pendingIntent = new PendingIntent.getActivity(this, 0, notificationIntent, 0);
nManager.notify(noti_ID, nBuilder.build());
Thanks :)

From developer.android.com
Required notification contents
A Notification object must contain the following:
A small icon, set by setSmallIcon()
A title, set by setContentTitle()
Detail text, set by setContentText()
So set a small icon too.

Notification resume app instead of restart

I've read multiple questions and answers surrounding this issue, however I cannot get any of them to work for me.
I have a notification that on click I would like to bring the application to the front and resume rather than close and restart.
This is my notification code
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("example")
.setContentText("example");
// Creates an explicit intent for an Activity in your app
Intent resultIntent = new Intent(this, MainActivity.class);
resultIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
// The stack builder object will contain an artificial back stack for the
// started Activity.
// This ensures that navigating backward from the Activity leads out of
// your application to the Home screen.
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
// Adds the back stack for the Intent (but not the Intent itself)
stackBuilder.addParentStack(MainActivity.class);
// Adds the Intent that starts the Activity to the top of the stack
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
int mId = 0;
// mId allows you to update the notification later on.
mNotificationManager.notify(mId, mBuilder.build());
And in my manifest file I have
android:launchMode="singleTop"
Can anyone see what is going wrong? I get no errors, although the notification refuses to resume the app and instead restarts it.

Fixed by using this:
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Sound Asleep")
.setContentText("Click to play and stop sounds");
// Creates an explicit intent for an Activity in your app
final Intent notificationIntent = new Intent(this, MainActivity.class);
notificationIntent.setAction(Intent.ACTION_MAIN);
notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);
// The stack builder object will contain an artificial back stack for the
// started Activity.
// This ensures that navigating backward from the Activity leads out of
// your application to the Home screen.
// Adds the back stack for the Intent (but not the Intent itself)
PendingIntent resultPendingIntent = PendingIntent.getActivity(this,0,notificationIntent,PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
int mId = 0;
// mId allows you to update the notification later on.
mNotificationManager.notify(mId, mBuilder.build());
}
In Manifest
android:launchMode="singleTop"

I had some similar issue recently change your intent flags with this flags:
resultIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);
Edit: and remove that launchmode from your manifest.
hope it help

Use below code, may it will help
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Sound Asleep")
.setContentText("Click to play and stop sounds");
// Creates an explicit intent for an Activity in your app
final Intent notificationIntent = new Intent(this, MainActivity.class);
notificationIntent.setAction(Intent.ACTION_MAIN);
notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);
// The stack builder object will contain an artificial back stack for the
// started Activity.
// This ensures that navigating backward from the Activity leads out of
// your application to the Home screen.
// Adds the back stack for the Intent (but not the Intent itself)
PendingIntent resultPendingIntent = PendingIntent.getActivity(this,0,notificationIntent,PendingIntent.FLAG_ACTIVITY_REORDER_TO_FRONT);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
int mId = 0;
// mId allows you to update the notification later on.
mNotificationManager.notify(mId, mBuilder.build());

I Have a notification in the status bar code, but AIDE is marking two things as wrong

I need to make a Status Bar Notification and I got this code from research, but it doesn't seem to be working out when I placed the code into MainActivity.java with AIDE
NotificationManager
mNotificationManager = (NotificationManager)
getSytemService(Context.N);
Notification notification = new notification(R.drawble.ic_launcher,
"Notification Test", System.currentT;
Context context = getApplicationContext();
CharSequence contentTitle = "My notification Title";
CharSequence contentText ="This is the message";
Intent notificationIntent = new Intent(this, MainActivity.class);
The errors seem to be at Line 3 with the (Context.N) where the N has the error message: Unknown member 'N' of 'android.content.Context'. The other error message is on the fifth line where it reads System.currentT with the error message of Unknown member 'currentT' of 'java.lang.Sytem'.

Context.N should be Context.NOTIFICATION_SERVICE.
System.currentT should be System.currentTimeMillis().
It seems that you are copying the code from somewhere but got the code truncated?
Here's a sample method for generating notifications.
This is based on Android's doc: Building a Notification. For more details (e.g. how to display a progress bar or an extended view), please read the docs.
private static void generateNotification(Context context, String messageTitle, String messageText)
{
// Get notification manager.
final NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
// Setup notification builder.
final NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.ic_notification)
.setContentTitle(messageTitle)
.setContentText(messageText)
.setAutoCancel(true)
.setDefaults(Notification.DEFAULT_ALL);
// Create intent.
final Intent resultIntent = new Intent(context, MainActivity.class);
// Setup task stack builder.
final TaskStackBuilder taskStackBuilder = TaskStackBuilder.create(context);
taskStackBuilder.addParentStack(MainActivity.class);
taskStackBuilder.addNextIntent(resultIntent);
// Create pending intent.
final PendingIntent resultPendingIntent = taskStackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
// Update notification builder.
notificationBuilder.setContentIntent(resultPendingIntent);
// Post notification.
notificationManager.notify(0, notificationBuilder.build());
}
The NotificationCompat.Builder class requires Android's version 4 Support Library.